x |
x2-1 |
x-1 |
x |
x |
x2-1 |
x-1 |
x |
2x |
x |
x |
(x+1)(x-1) |
-x-1 |
x |
1 |
x-1 |
1 |
2-1 |
x2+4x+4 |
x+2 |
1 |
2 |
x-3 |
x2-1 |
1 |
1-x |
x-3 |
x2-1 |
1 |
1-x |
x-3 |
(x+1)(x-1) |
1 |
x-1 |
x-3 |
(x+1)(x-1) |
x+1 |
(x+1)(x-1) |
2x |
x2-y2 |
x |
y2-x2 |
y |
(x-y)(x+y) |
x+
| ||
x-
|
x-
| ||
x+
|
4a |
a-1 |
4a |
a+1 |
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